[Illustrations are colored. Text on p. 2-3 of cover. Page 41 is page 3 of cover.]
Notes:
[Illustrations are colored. Text on p. 2-3 of cover. Page 41 is page 3 of cover.] † Distribution Made by Issuing Office. Director of Information, Tennessee Valley Authority, Knoxville, TN 37902
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† Distribution Made by Issuing Office. Director of Information, Tennessee Valley Authority, Knoxville, TN 37902